Allegany County Climate
Allegany County, New York
Avg Annual Temp
45.5°F
Annual Precip
40.3"
Annual Snowfall
76.4"
Extreme Heat Days
3.425
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Allegany County Weather
Allegany's Place in the National Climate
Allegany County is significantly cooler than much of the U.S., with an annual average temperature of 45.6°F. This reflects a classic northern continental climate characterized by long, cold winters and short, mild summers.
One of New York's Cooler Southern Tier Counties
At 45.6°F, Allegany stays nearly two degrees cooler than the New York state average of 47.4°F. It ranks among the chillier counties in the Southern Tier region due to its elevation and geography.
Cooler and Steadier Than Its Neighbors
Allegany is cooler than nearby Cattaraugus County, which averages 45.9°F. While both counties see plenty of winter weather, Allegany experiences fewer extreme heat days, averaging only 3 days above 90°F annually.
Heavy Snow and Refreshing Summers
Winter dominates the calendar with 76.4 inches of snow and a frigid January average of 22.4°F. Summer provides a brief respite, with July temperatures peaking at a comfortable average of 67.4°F.
Focus on Winter Resilience
Winter tires and high-quality insulation are essential for the 76 inches of snow and sub-freezing winter averages. Air conditioning is rarely a necessity here, as the county only sees 3 days of extreme heat per year.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.